Yu-Gi-Oh! Ultimate Masters: World Championship Tournament 2006 known as Yu-Gi-Oh Duel Monsters Expert 2006 (遊戯王デュエルモンスターズ エキスパート2006) and Yu-Gi-Oh World Championship Tournament 2006 in Europe is a card-battle video game based on the Yu-Gi-Oh! franchise. It was released for the Game Boy Advance on February 23, 2006 in Japan, later on March 14, 2006 in North America and March 31, 2006 in Europe, developed and published by Konami.